首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
For over two centuries, no one had been able to make Damascus blades—blades with a distinctive serpentine surface pattern—but a
For over two centuries, no one had been able to make Damascus blades—blades with a distinctive serpentine surface pattern—but a
admin
2019-11-17
19
问题
For over two centuries, no one had been able to make Damascus blades—blades with a distinctive serpentine surface pattern—but a contemporary sword maker may just have rediscovered how. Using iron with trace impurities that precisely matched those present in the iron used in historic Damascus blades, this contemporary sword maker seems to have finally hit on an intricate process by which he can produce a blade indistinguishable from a true Damascus blade.
Which of the following, if true, provides the strongest support for the hypothesis that trace impurities in the iron are essential for the production of Damascus blades?
选项
A、There are surface features of every Damascus blade—including the blades produced by the contemporary sword maker—that are unique to that blade.
B、The iron with which the contemporary sword maker made Damascus blades came from a source of iron that was unknown two centuries ago.
C、Almost all the tools used by the contemporary sword maker were updated versions of tools that were used by sword makers over two centuries ago.
D、Production of Damascus blades by sword makers of the past ceased abruptly after those sword makers’ original source of iron became exhausted.
E、Although Damascus blades were renowned for maintaining a sharp edge, the blade made by the contemporary sword maker suggests that they may have maintained their edge less well than blades made using what is now the standard process for making blades.
答案
D
解析
Argument Evaluation
Situation A sword maker may have recently rediscovered how to make Damascus blades using iron with trace impurities matching those in the iron from which historic Damascus blades were wrough .
Reasoning What evidence would suggest that the trace impurities are essential for producing Damascus blades? The passage says the sword maker seems to have created blades indistinguishable from historic Damascus blades by using iron with the same trace impurities found in those blades. But that does not prove the trace impurities are essential to the process. Evidence suggesting that Damascus blades have never been made from iron without the trace impurities would support the hypothesis that the trace impurities are essential to their manufacture.
A Damascus blades could vary in their surface features whether or not trace impurities are essential for their manufacture.
B Whatever the source of the iron the contemporary sword maker used, it contains the same trace impurities as the iron historically used to make Damascus blades, which is what the hypothesis is about.
C If anything, this might cast doubt on the hypothesis by suggesting that the special tools rather than the trace impurities could account for the distinctive features of Damascus blades.
D Correct. This suggests that when the historic sword makers lost access to the special iron with its trace impurities, they could no longer make Damascus blades. Thus, it supports the hypothesis that the trace impurities are necessary for manufacturing Damascus blades.
E Even if Damascus blades maintained their edges less well than most contemporary blades do, the trace impurities may not have been essential for manufacturing them.
The correct answer is D.
转载请注明原文地址:https://kaotiyun.com/show/XQkO777K
本试题收录于:
GMAT VERBAL题库GMAT分类
0
GMAT VERBAL
GMAT
相关试题推荐
Traditionally,universitieshavecarriedouttwomainactivities:researchandteaching.Manyexpertswouldarguethatboththes
"Hightech"and"stateoftheart"aretwoexpressionsthatdescribethemoderntechnology.Hightechisjustashorterwayofs
Wasitbecausehewasill________heaskedforleave?
That’sthereason________Anncouldnotdoherpartofthejob.
Itseemslikeeverydaythere’ssomenewresearchaboutwhetherourfavoritedrinksaregoodforus.Oneday,sciencesaysagla
Normallyastudentmustattendanumberofcoursesinordertograduate,andeachcoursewhichheattendsgiveshimagradewhic
Nooneknowshowmanlearnedtomakewords.Perhapshebeganbymakingsoundslikethosemadebyanimals.Perhapshegruntedlik
Dr.JamesBarrywasthefirstwomaninEnglandtogotomedicalschool.Whenshewasgrowingup,womencouldnotgotomedicals
Byadoptingafewsimpletechniques,parentswhoreadtotheirchildrencangreatlyincreasetheirchildren’slanguagedevelopme
随机试题
甲向乙借款20万元做生意,由丙提供价值15万元的房屋抵押,并订立了抵押合同。甲因办理登记手续费过高,经乙同意未办理登记手续。1年后,甲因亏损无力还债,乙诉至法院要求行使抵押权、质押权。本案例抵押和质押的效力如何()
EdmundHalleywasanEnglishscientistwholivedover200yearsago.Hestudiedtheobservationsofcomets(彗星),whichothersci
急性胰腺炎病人出现以下哪种情况为重症与预后不良的标志()
女,47岁。碘过敏试验阴性。护士在做膀胱造影前还必须准备急救药物的目的是
2007年4月12日,黎某与王某订立书面合同,约定:黎某将一台“熊猫”牌彩电以2300元卖给王某,王某应于合同签订时一次付清全部价款;黎某应于4月20日交付彩电;如果违约,应承担违约责任。合同签订时,王某依约付清了全部价款。4月15日,黎某又与孙某达成协议
下列关于投标报价编制原则,说法不正确的是()。
目前,各国物流学术界和实务界普遍认同的一个社会物流成本计算的概念性公式为:物流总成本(TotalLogisticsCosts)=运输成本+存货持有成本+物流行政管理成本。()
第三方物流企业站在货主的立场上,以货主企业的物流合理化为设计物流系统和系统运营管理的目标。()
中班活动“谁能穿过弯道”中,教师投放了小扣子、纸条、棉花等各种材料和弯管,引导幼儿对出示的材料能否通过弯道进行猜想并记录。萱萱尝试让棉花通过弯道,反复操作了几次,都没成功。她看到身旁的明明把小钢珠和棉花揉在了一起,借着钢珠的重力,棉花很轻易就通过了弯道。萱
严肃与谨慎相结合中的严肃是指()。
最新回复
(
0
)